Garbage-destructor.



PATENTED DEC. 22, 1903. T. ROOKE & J. THRUSH. GARBAGE DESTRUUTOR.APPLIOATION'PILED APR. 22, 1903.

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No. 747,488. PATENTED DEC. 22, 1903 T. ROOKE & J. THRUS H. GARBAGEDESTRUUTOR. APPLIGATION FILED APR. 22, 1903.

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UNITED STATES Tatented fbecember 22, 1903.

PATENT OFFICE.

THOMAS ROOKE, OF NEWTOWN, AND JOHN THRUSH, OF DULWIOH HILL, NEW SOUTHWALES, AUSTRALIA.

GARBAGE-DESTRUCTOR.

iSPECIFICATION forming part of Letters Patent No. 747,488, datedDecember 22, 1903.

Application filed April 22,1903.

To aZZ whom it may concern.-

Be it known that we, THOMAS ROOKE, a resident of Enmore road, Newtown,and JOHN THRUSH, a resident of Silver Hill, New Canterbury road, DulwichHill, in the State of New .South Wales, Commonwealth of Australia,subjects of the King of Great Britain and Ireland, have invented acertain new and useful Garbage-Destructor, of which the following is aspecification. v

The essential features of novelty in this invention are the combination,with a fire-space or furnace, of a roasting-plate, above which is ascreen or grating which overlies the furnace, but underlies the hopperwhere. the garbage is tipped. There is also a special arrangment offiues whereby hot air is mixed with the products of combustion from thefuel and with the mixed gases from the garbage in order to secure themaximum of heat, and therefore the maximum of destructive combustion.

In order that the invention may be properly understood, reference ismade to the accompanying sheets of drawings, in which- Figure 1 is avertical section of a complete cell, taken on the line A B of Fig. 2.Fig. 2 is a vertical section of the same in a plane at right angles toFig. 1 and on the line C D of Fig. 1. Fig. 3 is a horizontal section onthe line 1 2 of Figs. 1 and 2. Fig. 4 is a horizontal section on theline 3 4 of Figs. 1 and 2. Fig. 5 is a horizontal section on the line 56 ofFigs. 1 and 2. Fig. 6 is a horizontal section on the line 7 S'ofFigs. 1 and 2. Fig. 7 is an isometrical projection of the exterior ofthe cell.

Although only one cell has been shown in the drawings, it may bepremised that cells may be worked inpairs or in nests of pairs and thata steam generator or boiler may be placed in any suitable positionrelative to the cells whereby the waste products of'combustion may beutilized for the purpose of raising steam.

The cell is inclosed in a casing composed of angle and T iron, whichform a framework of panels, thepauels being filled in with buckledplates and backed by concrete, fire-brick, or fire-clay lining in anysuitable manner, so that the greatest efficiency may be obtained andradiation of the heat minimized. The

' Serial No. 153,867. (No model.)'

external View is shown at Fig. 7. A door a is made in the front of thecasing to afford admission to the fire-space or furnace b, which is ofordinary boiler construction. Above the fire-space b is a roasting-platec, that is cut away at the corners to afford flue-spaces d for thepassage of the products of combustion from the fire-space. This flue andspaces (1 are increased in size by halving the same into the surroundingbrickwork, and thus they form direct connections for the admission oftheproducts of combustion from the fire-space b to the space e above theroastingplate 0. Immediately behind the fire-space b and space e is anair-chamber f, which is open to the external atmosphere through the airpassages or flues g. The products of combustion besides partly passingthrough the flue-spaces d in the plate 0 will also partly pass throughthe flue-passage h at the rear of the fire-space b into the air-chamberf, mixing there with the hot air which has entered through the passagesg and will then partly pass through the flue-passages j j into the space6 and will'partly pass upward through flue-passages f f into the garbagechamber or cell In above the screen or grating Z. An

additional volume of air may be introduced into the fire-space b throughthe air-Openings b I), which are specially shown in the horizontalsection'Fig. 6 and external view Fig. 7.

The products of combustion from the furnace and the mixed gases from thegarbage will escape from the garbage chamber or cell. It through thesquare fiues m m, which almost surround the dome of the garbage chamberor cell it. The disposition of these flues is clearly shown in thehorizontal section Fig. 4. The lower angle of the square flue m, whichlies nearest to the front of the furnace, is cut away, so as to make arectangular opening m through which the smoke and mixed gases in thechamber or cell It may enter the flue m. The front flue m is connectedto the back flue m by lateral flue-passages n n, made inthe brickworkand specially shown in the horizontal section Fig. 4. From the rearsquare flue m the smoke and gases will pass through the uptake-flue Oaway from the cell.

Above the chamber or cell It and the square fiues m m is thegarbage-hopperp, into which the garbage is tipped from above through theopening q. The bottom of the hopper p is closed and cutoff from thegarbage chamber or cell It by the swinging doors 0 T, which open inwardor downward. These doors 1' are caused to open by the weight of thegarbage which lies upon them, pressing them downward, and are caused toclose by the re acting force of the counterweights s s and chains 3' s.It will thus be seen that any garbage which may come in contact with theswinging doors r 1*, square fiues 'm m, and uptake-flue 0 will bethoroughly dried before it can enter the garbage chamber or cell It.

The mode of operation is as follows: The garbage is tipped into thehopper p from above. As soon as the weight of garbage is sufficient thedoors r 1" will open downward, the garbage will slide into the garbagechamber or cell 70 and will lie upon the screen or grating Z, the dustand smaller stufi dropping through the grating Z onto the roasting-plate0, while the larger stuff will remain upon the grading Z to be consumed.It is obvious that the roasting-plate 0 will become choked by theaccumulation of dust upon it. In order to prevent this result, swingingscrapers t are provided. These scrapers are worked backward and forwardby rods or chains 25' i from theoutsideofthecell,achuteubeingprovideddown which the dust can escape from the cell when it is raked over bythe scrapers t. By referring to Fig. 1, it will be seen that theroasting-plate c is directly heated by the furnace-fire beneath it. Thespace 6, above 0 and below Z, is heated by the products of combustionentering the space partly through the corner-fiues d and partly throughthe passages hfj, while thelarger garbage, which lies upon the gratingZ, will be heated from below by the heat from the space sand from aboveby the heat from the furnace, which travels from the fire-space bthrough the passages 71. f f. The noxious gases and products ofcombustion will be drawn oil from the garbage chamber or cell throughthe fiues and passages m n n m into the uptake 0. The combustion of thegarbage will be greatly accelerated and intensified by the hot air inthe chamber f, the air becoming highly heated before it can enter thegarbage chamber orcell 7t. Whatindestructible residue remains after thecremation of the garbage is complete will be withdrawn from the garbagechamber or cell 70 through the door 1:. (Shown in Figs. 1, 5, and 7.)

Having now described our invention, what we claim as new, and desire tosecure by Letters Patent, is

1. In garbage-destructors, agarbage-chamber, a hopper above the chamber,a fire-space, a roasting-plate above the same, a grating above theroasting-plate, said grating forming the bottom of the garbage-chamber,and air-passages leading from the fire-space to the space between theroastingplate and the said grate, said passages being arranged at thecorners of the roasting-plate, a vertical airchamber f, a flue-passage hleading thereto from the fire-space and a flue-passagej leading from theair-chamber to the space between the roasting-plate and the grating,substan tially as described.

2. In garbage-destrnctors, a garbagechamber, a hopper above the chamber,a fire-space, a roasting-plate above the fire-space, a grating above theroasting-plate forming the bottom of the said chamber, a passage leadingfrom the fire-space, an air-chamber f with which said passage connectssaid fire-space communicating with theexternal atmosphere, and passagesleading from the fire-space to the space between the roasting-plate andthe grate and also from the said air-chamber to the said space betweenthe roasting-plate and grate.

3. In garbage-destructors, a fire-space, a roasting-plate above thefire-space, a grating a little distance above the roasting-plate,passages for conveying the products of combustion from the fire-space tothe space above the roasting-plate, an air-chamber behind thefire-space, such chamber being in open communication with the externalatmosphere, passages or dues for allowing the products of combustionfrom the fire-space to enter the air-chamber, and dues or passages fromthe air-chamber to the space between the roasting-plate and theoverlying grating, and fiues or passages from the air-chamber to thegarbage chamber or cell above the grating, as herein specified.

4:. In garbage-destructors, a fire-space, a roasting-plate above thefire-space, a grating a short distance above the roasting-plate, agarbage chamber or cell above the grating, agarbage-hopperabove thegarbage chamber or cell, doors closing the bottom of said 110pper, meanscontrolling said doors, an airchamberbehind the fire-space, and passagesconnecting the air-chamber with the firespace and the space above theroasting-plate and also with the garbage-chamber.

5. In garbage-destructors, a fire-space, a roasting-plate above thefire-space, a grating above the roasting-plate, a garbage-cell above thegrating, an air-space behind the firespace, suitable tlues or passagesfor conveying the products of combustion to the air-chamber and fromthence to the garbage-spaces, an uptake-flue between the garbage-celland the hopper, such flue being in communication on one side with thegarbage-cell and on the other withthe uptake-flue, as herein specified.

In witness whereof we have hereunto set our hands in the presence of twowitnesses.

THOMAS ROOKE. JOHN THRUSH.

Witnesses:

MANFIELD NEWTON, A. R. W. MASSEY.

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